CVE-2020-26142
Detail
Modified After Enrichment
This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:H/Au:N/C:N/I:P/A:N)
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Change History
9 change records found show changes
CVE Modified by MITRE
6/16/2026 11:07:41 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Affected |
[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]
|
CVE Modified by CVE
11/21/2024 12:19:21 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
http://www.openwall.com/lists/oss-security/2021/05/11/12
|
| Added |
Reference |
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
|
| Added |
Reference |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
|
| Added |
Reference |
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
|
| Added |
Reference |
https://www.fragattacks.com
|
CVE Modified by MITRE
5/14/2024 2:53:30 AM
| Action |
Type |
Old Value |
New Value |
Modified Analysis by NIST
12/03/2021 4:12:09 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Reference Type |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu No Types Assigned
|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory
|
| Changed |
Reference Type |
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 No Types Assigned
|
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory
|
CVE Modified by MITRE
10/28/2021 11:15:07 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu [No Types Assigned]
|
| Added |
Reference |
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 [No Types Assigned]
|
Reanalysis by NIST
9/22/2021 2:20:02 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
NIST AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
|
| Removed |
CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
|
| Added |
CVSS V2 |
NIST (AV:N/AC:H/Au:N/C:N/I:P/A:N)
|
| Removed |
CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
|
| Added |
CVSS V2 Metadata |
Victim must voluntarily interact with attack mechanism
|
Reanalysis by NIST
6/07/2021 4:51:10 PM
| Action |
Type |
Old Value |
New Value |
Initial Analysis by NIST
5/20/2021 1:30:56 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
|
| Added |
CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
|
| Added |
CWE |
NIST CWE-74
|
| Added |
CPE Configuration |
OR
*cpe:2.3:o:openbsd:openbsd:6.6:*:*:*:*:*:*:*
|
| Changed |
Reference Type |
http://www.openwall.com/lists/oss-security/2021/05/11/12 No Types Assigned
|
http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Third Party Advisory
|
| Changed |
Reference Type |
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md No Types Assigned
|
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory
|
| Changed |
Reference Type |
https://www.fragattacks.com No Types Assigned
|
https://www.fragattacks.com Third Party Advisory
|
CVE Modified by MITRE
5/11/2021 5:15:07 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
http://www.openwall.com/lists/oss-security/2021/05/11/12 [No Types Assigned]
|
Quick Info
CVE Dictionary Entry: CVE-2020-26142 NVD
Published Date: 05/11/2021 NVD
Last Modified: 06/16/2026
Source: MITRE
|
